| 摘要 |
Disclosed therein is a method of displaying an abnormal status in a plant operation monitoring system. The method of displaying the abnormal status includes the steps of: receiving information of operational states from sensing means mounted on devices, machines and facilities constituting an industrial plant system; checking whether or not there is any abnormal signal in the operational states, logically grouping parts influencing on operational values when the abnormal signal is generated, and displaying the parts on a piping & instrument drawing (P&ID) on a monitor; and tracing the abnormal signal in a reverse direction of a system flow, searching out the device which causes the abnormal state, and displaying the abnormal device on the piping & instrument drawing.
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